Curated OER
Earth's Natural Resources
In this geology instructional activity, 10th graders locate 44 terms about natural resources in a word search. Answers are available in various formats.
Other
Sheffield Hallam University: Gas Chromatography
This page uses diagrams and charts along with written text to explain gas chromatography.
US Energy Information Administration
U.s. Eia Energy Kids: Timelines: Ethanol
Timeline of key milestones in the use of ethanol as a source of energy.